Dual neutron flux/temperature measurement sensor

Mihalczo, John T; Simpson, Marc L; McElhaney, Stephanie A

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Title: Dual neutron flux/temperature measurement sensor

Abstract

Simultaneous measurement of neutron flux and temperature is provided by a single sensor which includes a phosphor mixture having two principal constituents. The first constituent is a neutron sensitive 6LiF and the second is a rare-earth activated Y203 thermophosphor. The mixture is coated on the end of a fiber optic, while the opposite end of the fiber optic is coupled to a light detector. The detected light scintillations are quantified for neutron flux determination, and the decay is measured for temperature determination.

Inventors:

Mihalczo, John T ^[1]; Simpson, Marc L ^[2]; McElhaney, Stephanie A ^[1]

Oak Ridge, TN
Knoxville, TN

Issue Date:: 1994-01-01

Research Org.:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

OSTI Identifier:: 869524

Patent Number(s):: 5352040

Assignee:: Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)

Patent Classifications (CPCs):: G - PHYSICS G01 - MEASURING G01K - MEASURING TEMPERATURE

G - PHYSICS G01 - MEASURING G01T - MEASUREMENT OF NUCLEAR OR X-RADIATION

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G - PHYSICS G01 - MEASURING G01K - MEASURING TEMPERATURE
G01K11/3213 - {using changes in fluorescence, e.g. at the distal end of the fibre}

G - PHYSICS G01 - MEASURING G01T - MEASUREMENT OF NUCLEAR OR X-RADIATION
G01T3/06 - with scintillation detectors

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DOE Contract Number:: AC05-84OR21400

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: dual; neutron; flux; temperature; measurement; sensor; simultaneous; provided; single; phosphor; mixture; principal; constituents; constituent; sensitive; 6lif; rare-earth; activated; y203; thermophosphor; coated; fiber; optic; opposite; coupled; light; detector; detected; scintillations; quantified; determination; decay; measured; simultaneous measurement; fiber optic; neutron flux; temperature measurement; light detector; neutron sensitive; temperature determination; single sensor; detected light; flux determination; temperature measure; phosphor mixture; /374/250/252/

Citation Formats


                    Mihalczo, John T, Simpson, Marc L, and McElhaney, Stephanie A. Dual neutron flux/temperature measurement sensor.  United States: N. p., 1994. 
        Web.

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                    Mihalczo, John T, Simpson, Marc L, & McElhaney, Stephanie A. Dual neutron flux/temperature measurement sensor.  United States.

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                    Mihalczo, John T, Simpson, Marc L, and McElhaney, Stephanie A. Sat .  
        "Dual neutron flux/temperature measurement sensor".  United States.  https://www.osti.gov/servlets/purl/869524.

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@article{osti_869524,

  title        = {Dual neutron flux/temperature measurement sensor},

  author       = {Mihalczo, John T and Simpson, Marc L and McElhaney, Stephanie A},

  abstractNote = {Simultaneous measurement of neutron flux and temperature is provided by a single sensor which includes a phosphor mixture having two principal constituents. The first constituent is a neutron sensitive 6LiF and the second is a rare-earth activated Y203 thermophosphor. The mixture is coated on the end of a fiber optic, while the opposite end of the fiber optic is coupled to a light detector. The detected light scintillations are quantified for neutron flux determination, and the decay is measured for temperature determination.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1994},

  month        = {1}

}

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Works referenced in this record:

Remote thermometry of moving surfaces by laser-induced fluorescence of surface-bonded phosphor
conference, January 1984

Cates, M. R.; Allison, S. W.; Franks, L. A.
ICALEO® ‘83: Proceedings of the Inspection, Measurement and Control Symposium, International Congress on Applications of Lasers & Electro-Optics
https://doi.org/10.2351/1.5057507

Remote Thermometry In A Combustion Environment Using The Phosphor Technique
conference, August 1987

Allison, S. W.; Cates, M. R.; Scudiere, M. B.
Technical Symposium Southeast, SPIE Proceedings
https://doi.org/10.1117/12.940706

Scintillator for Thermal Neutrons using Li ⁶ F and ZnS (Ag)
journal, October 1960

Stedman, R.
Review of Scientific Instruments, Vol. 31, Issue 10
https://doi.org/10.1063/1.1716833

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Similar Records

Title: Dual neutron flux/temperature measurement sensor

Abstract

Citation Formats

Remote thermometry of moving surfaces by laser-induced fluorescence of surface-bonded phosphor conference, January 1984

Remote Thermometry In A Combustion Environment Using The Phosphor Technique conference, August 1987

Scintillator for Thermal Neutrons using Li 6 F and ZnS (Ag) journal, October 1960

Remote thermometry of moving surfaces by laser-induced fluorescence of surface-bonded phosphor
conference, January 1984

Remote Thermometry In A Combustion Environment Using The Phosphor Technique
conference, August 1987

Scintillator for Thermal Neutrons using Li ⁶ F and ZnS (Ag)
journal, October 1960